Abstract
A model ground of air dried sand compacted in a shear testing apparatus and two composite models each of which had the model pit of different rigidity buried in same model ground as above one were excited horizontally with sinusoidal motions on a shaking table. From measured acceleration and dynamic earth pressure it has been found that the vertical vibration is produced in the ground due to the dilatancy or volume change of soil and yet it produces the dynamic earth pressure acting on all outside walls of the model pit. The vertical vibration is more strongly influenced on than the horizontal one by the dynamic soil-structure interaction. In addition, we show that the vertical vibration produced by horizontal exciting is able to be predicted by finite element procedure with elasto-plastic dynamic response analysis.